How To Size A Solar Pv System

Pv system size power output derate factor 3 21 k w 0 8 4 01 k w.

How to size a solar pv system.

If the number of panels is too few due to the size of the roof then one needs to look at the wattage output. T here are two ways to size a photovoltaic solar power system array. In this comprehensive example we ll design a standalone solar pv system for a telecom outstation situated in the desert. In order to determine the size of the pv system divide the required power output by the derate factor.

Collect your electricity bills for the past year so you can calculate your. By measurements in the time of the worst month the solar irradiation on site at the optimum tilt angle is 5 01 kwh m 2. Look up your peak sun hours average peak sun. Calculate your kwh usage gather the kilowatt hours kwh usage from your electric bill.

Estimation of the solar irradiation on site. Locate a solar insolation table online see resources to determine the insolation the average. The formula is simple. Solar pv system sizing example.

You ll want to have full 12. To find out the sizing of pv. This will double our estimated amp hour needs and ensure we stay below 50 dod. The size available needs to be divided by the size of the solar panel that is going to be used.

How to size a solar pv system for your home calculate your home s electricity usage. 2 amp hour requirements from step 2 in our example system from step 2 the battery bank should be 12 v and 168 ah 2 84 ah. Renewable energy installers recommend sizing your system for twice the true amp hours determined in step 2 above. Determine power consumption demands the first step in designing a solar pv system is to find out the total power and.

Inverter sizing an inverter is used in the system. Before you begin to size a solar system follow these steps to determine your home s average electricity consumption and pv needs.